Abstract
A solution culture was conducted to study the effect of Ca2+ on the root activity and the content of osmotic adjustable organic substances of maize seedings under NaCl stress.The results showed that the root activity decreased significantly while there was a lack of Ca2+,with the increase of Ca2+ contents the root activity increased significantly,but the root activity decreased under fitting Ca2+ concentration.The lack of calcium,soluble sugar,proline and free amino acids increased significantly in leaves.With the increase of Ca2+ concentration soluble sugar,proline and free amino acids decreased gradually.In opposition to the change in leaveas,with the increase of Ca2+ concentration soluble sugar,proline and free amino acids increased gradually,proline decreased a little under 6mmol/L Ca2+ concentration in roots.With the increase of Ca2+ concentration the soluble protein in leaves increased in terms of 0-4 mmol/L of Ca2+ concentration and in that of 6 mmol/L they were decreased,while the changes in roots were not in evidence.The above results strongly suggested that the calcium participate in transportation and distribution of osmotic adjustable substances account to some extent for the mechanism of effect of Ca2+ on salt stress.
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Claims 11
Claim · model-written summary
Lack of calcium significantly decreased root activity under NaCl stress.
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results showed that the root activity decreased significantly while there was a lack of Ca2+”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Increasing calcium significantly increased root activity.
- Treatment
- increase of Ca2+ contentse0
- Outcome
- root activitye0
- Direction
- increasede0
- Qualifier
- Under NaCl Stresst0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with the increase of Ca2+ contents the root activity increased significantly”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Root activity decreased under the stated fitting calcium concentration.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“but the root activity decreased under fitting Ca2+ concentration.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Calcium lack significantly increased leaf soluble sugar, proline and free amino acids.
- Organ / stage
- leavese0
- Treatment
- lack of calciume0
- Outcome
- soluble sugar,proline and free amino acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The lack of calcium,soluble sugar,proline and free amino acids increased significantly in leaves.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Increasing calcium gradually decreased leaf soluble sugar, proline and free amino acids.
- Organ / stage
- leavese1
- Treatment
- increase of Ca2+ concentratione0
- Outcome
- soluble sugar,proline and free amino acidse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Ca2+ concentration soluble sugar,proline and free amino acids decreased gradually.”
e1“The lack of calcium,soluble sugar,proline and free amino acids increased significantly in leaves.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Increasing calcium gradually increased root soluble sugar, proline and free amino acids.
- Organ / stage
- rootse0
- Treatment
- increase of Ca2+ concentratione0
- Outcome
- soluble sugar,proline and free amino acidse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In opposition to the change in leaveas,with the increase of Ca2+ concentration soluble sugar,proline and free amino acids increased gradually,proline decreased a little under 6mmol/L Ca2+ concentration in roots.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Root proline decreased a little at 6mmol/L calcium.
- Organ / stage
- rootse0
- Treatment
- 6mmol/L Ca2+ concentratione0
- Outcome
- prolinee0
- Direction
- decreasede0
- Qualifier
- a littlee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“proline decreased a little under 6mmol/L Ca2+ concentration in roots.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Leaf soluble protein increased as calcium rose within 0-4 mmol/L.
- Organ / stage
- leavese0
- Treatment
- 0-4 mmol/L of Ca2+ concentratione0
- Outcome
- soluble proteine0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Ca2+ concentration the soluble protein in leaves increased in terms of 0-4 mmol/L of Ca2+ concentration and in that of 6 mmol/L they were decreased,while the changes in roots were not in evidence.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Leaf soluble protein decreased at 6 mmol/L calcium.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Ca2+ concentration the soluble protein in leaves increased in terms of 0-4 mmol/L of Ca2+ concentration and in that of 6 mmol/L they were decreased,while the changes in roots were not in evidence.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
Changes in root soluble protein with calcium concentration were not evident.
- Organ / stage
- rootse0
- Treatment
- increase of Ca2+ concentratione0
- Outcome
- soluble proteine0
- Direction
- not in evidencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With the increase of Ca2+ concentration the soluble protein in leaves increased in terms of 0-4 mmol/L of Ca2+ concentration and in that of 6 mmol/L they were decreased,while the changes in roots were not in evidence.”
t0“Maize Seedlings Under NaCl Stress”
Claim · model-written summary
The authors suggest calcium participation in osmotic-substance transportation and distribution partly explains its salt-stress effect.
- Compound
- calciume0
- Outcome
- effect of Ca2+ on salt stresse0
- Qualifier
- transportation and distribution of osmotic adjustable substancese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The above results strongly suggested that the calcium participate in transportation and distribution of osmotic adjustable substances account to some extent for the mechanism of effect of Ca2+ on salt stress.”
t0“Maize”
The same questions in other papers
calcium(2+) · physiology: osmolytes · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 2 in the opposite direction
- positive
- positive
- no effect
1 paper more in this group
See all 5 papers →calcium(2+) · growth · Zea mays (maize)Positive and negative results
13 papers in the same direction as this paper · 2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- no effect
- no effect
13 papers more in this group
See all 17 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.